contrary; opposite; backwards; to go against; to oppose; to betray; to rebel

reversible; (math.) invertible

to hiccup; to belch

disobedient to parents

contrary

to go against; to do sth contrary to (sb's wishes)

reverse flow of 氣|气[qi4] (TCM)

(astrology) Mercury retrograde (abbr. for 水星逆行[shui3 xing1 ni4 xing2]); (coll.) to have a period of bad luck; (TCM) water retention in the abdomen causing the vomiting of liquids as soon as one drinks

to rebel; to revolt

to violate; to go against

very friendly; intimate

to disobey; to defy an edict; to violate; to go against; to run counter to

irreversible

multiplicative inverse (math.)

belching and retching counterflow (medical term)

to wipe out the villains (e.g. insurgents, or people of another race)